Exoplanet
HIP 9618 b
220.31 light-years
- Discovery
- Transit · 2023
- Radius
- 3.8284 (+0.1044 / −0.0882) Earth radii
- Mass
- < 8.3 Earth masses
- Orbital period
- 20.7729 (+4.7 × 10⁻⁵ / −4.7 × 10⁻⁵) days
- Semi-major axis
- 0.145 (+3 × 10⁻³ / −3 × 10⁻³) AU
- Equilibrium temperature
- 640.88 (+10.94 / −10.36) K
- Mass provenance
- Mass
Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.
NASA archive record and references ↗
Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00